肾气丸的主治有
A.肾阳虚
B.痰饮
C.水肿
D.消渴
E.转胞
参考答案：A, B, C, D, E
圆A的半径比圆B的半径长2cm，则我们可以肯定圆A与圆B的( )。
A．面积之差为4πcm2
B．周长之差为4πcm
C．周长之差为2πcm
D．面积之差为2πcm2
When I came through the customs at the airport, I had to pay（）on a clock I had bought.
A.taxes
B.duty
C.fines
D.fees
